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DUMET Medical DUMET Medical Solved Paper-2010

  • question_answer
    \[At\,t=0,\] a stone of mass 10 g is thrown straight up from the ground level with a speed 10 m/s. After 1 s a second stone of the same mass is thrown from the same position with a speed 20 m/s. What is the position of the 1st stone from the ground level at that moment? (take g =10 m/s2)

    A)  10 m  

    B)  1 m  

    C)  2m   

    D)  5 m

    Correct Answer: D

    Solution :

     Distance covered in 1 s \[h=ut-\frac{1}{2}g{{t}^{2}}\] \[=10\times 1-\frac{1}{2}\times 10\times {{1}^{2}}\] \[=10-5=5\,cm\] So, the position of 1st stone from the ground is 5m.


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